Innersole.



E. DRAKE, DEC]).

1'. n. DRAKE, nxnou'ron.

INNBRSOLE.

AYPLIGATION FILED 00T.20,1910.

Patented 0013. 6, 1914.

@TATE@ PATENT El -TEE.

ELLIS DRAKE, 0F STOUGHTON, MASSACHUSETTS; FRANK E. DRAKE, EXECUTOR OF SAID ELLIS DRAKE, DECEASED, ASSIGNOR T0 GEQRGE H. LOWE, OF WELLESLIEY,

MASSACHUSETTS.

INNERSOLE.

Lil 12,9388.

Specification of Letters Patent.

Patented Oct. 6, 1914.

Application filed October 20, 1910. Serial No. 588,070.

To all whom it may concern Be it known that I, ELLIS DRAKE, of Stoughton, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Innersoles, of which the following is a specification.

This invention relates to an inner sole for a welted boot or shoe, the part of the sole which receives the inseam stitches uniting the welt and upper with the inner sole, being made separate from the body of the sole and attached to one side of said body to form a stitch-receiving rib or wale constituting a substitute for the ordinary stitchreceiving lip or flap, which is integral with the body of the sole and is formedb'y channeling one side of the said body.

This invention has for its object to provide a relatively cheap, and at the same time, strong, durable and desirable inner sole, the rib or wale of which is attached to the bod of the sole by stitches adapted to be quic ly and economically formed by a sewing machine. i

The invention consists in the improvements which I will now proceed to describe 7 and claim.

Of the accompanying drawings which form a part of this specification,-Figure 1 represents a side view of an inner sole embodying my invention; Fig. 2 represents an enlargement of a portion of Fig. 1; Fig. 3 represents a section on lines 3-3 and 3-3 of Fig. 2; Fig. 4 represents in perspective, the relative arrangement of the threads which unite the two layers; and Fig. 5 represents an edge view of the portion of the work shown by Fig. 2.

Similar reference characters indicate the same or similar parts in all the figures.

In the drawings, a represents a base layer having relatively wide opposite sides, said layer being the body portion of an inner sole.

b represents a narrow, elongated ridgeforming layer which bears on one side of the base layer and, when attached to the latter as hereinafter described, forms a rib or wale adapted to receive the inseam stitches of a welted shoe,ithe said rib extending substantially parallel with the edge of the base layer.

In carrying out my invention, I unite the layers a and I) by stitches which are characterized by the fact that the portions of the stltches which engage the base layer are located between the opposite sides thereof. said stitches being wholly concealed by the side of the base layer opposite that which supports the narrow layer or ridge, so that the outer or footsupporting side of the sole is uninterrupted by stitches and presents a smooth bearing for the foot of the wearer of the boot or shoe. The thread of which said stitches are made is disposed to form inner portions engaged with the base layer and concealed by the outer surface thereof, outer portions engaged with the narrow layer, said portions being arranged to oppose movement of one layer away from the other, and intermediate portions which conmeet the inner and outer portions, and tie sa d inner and outer portions together, the said inner and outer portions extending croxwise of the narrow layer, while the connecting portions extend outwardly from the ridge-supporting surface of the base layer and act as tension members connecting the inner and outer portions.

In the drawings, I have shown the stitches composed of two threads, one of which is formed into a series of inner loops 12, a series of outer loops 13, and a series of inclined stretches or tension members 14, connecting said loops. The other thread is passed through and interlocked with the loops 12 and 13 and is arranged in zig-zag fashion, the portions of the thread between the loops constituting inclined stretches 15.

The loops 12 and 13 extend crosswise of the narrow layer, the loops 13 being substantially parallel with the inner surfaceof the base layer, while the loops 12 are as nearly parallel with said surface as their curvature, shown by Figs. 3 and 4; will permit. The inner loops are formed between the sides of the base layer, the thread thereof entering the base layer at one side of the narrow layer, and emerging therefrom at the opposite side. The thread portions 14 and 15 are located at opposite sides of the narrow layer, and extend outwardly from the inner surface of the base layer so that they constitute tension members resisting strain tending to separate one layer from the other,

It will now be seen that the uniting threads constitute a lock stitch which differs from the ordinary form of lock stitch in that the loops formed by the usual needle, instead of being all arranged in the same plane, are arranged in two series at difierent ieights, the loops 12 beingbelow the inner surface of the base layer, while the loops 13 are in a higher plane above andsubstantially parallel with said surface. The loops 12 are therefore embedded in the material of the base layer and concealed by the outer surface thereof, while the loops 13 pass through the narrow layer above the inner surface of the base layer, the intermediate portions 14: and 15 being approximately perpendicular and tying the loops together, so that the loops are enabled to resist movement of either layer awa from theother, by the tensile strength 0 the intermediate portions, which by reason of their position relatively to the layers, become in ellect tension members preventing the separation of the outer loops from the inner loops. The narrow layer is thus rigidly held against lateral displacement. In the ordinary form of lock stitch the intermediate portions connecting the loops are in the same plane with the loops and do not act as tension members adapted to tie two superimposed layers together.

The described stitch is adapted to be formed b mechanism having provisions for forming the loops at different heights, and for feeding the work to incline the intermediate portions, the base layer being bent a; the point where the loops 12 are inserted in it, so that a straight needle may be used, each loop 12 being straight when first in serted, and curved as shown in Figs. 3 and stitch.

images 4 b the straightening oil the bent portion of t e base layer.

In connecting the layers by a machine, I

first thrust the needle into the inner side of the base layer and out on the same side at right angles with or to the direction of the feed instead of arallel, then engagin the loop thus forme with a shuttle threa the needle then returning to form a lockstitch, then shiftin the needle vertically instead of horizonta ly to enable it in forming the next loop to pass directly through the narrow layer instead of completely overlapping said layer as in the case of the ordinary loc Again, 1 form my stitch at right angles, instead of parallel with the direction of the feed. By so doing, I not only utilize more of the tensile strength of the thread, but the seam will better resist displacement or position, especially when said seam, during the period of use, is subject to a side or right angle strain relative to its longitudiitial lines.

I claim An inner. sole comprising a flat body, a rib bearing on one surface of said body ad jacent the edge thereof, and stitches extending alternately transversely through the rib and beneath t e contiguous face or said fiat body but not through the opposite face of the latter, said stitches binding the rib to the body on both sides of the rib.

In testimony whereof l have .afixedmy signature, in presence of two witnesses.

' ELLIS DRAKE.

Witnesses:

' C. F. Bnown,

P. W. Panama. 

